[orca] Add NotShowIn=GNOME; to the desktop file

[Joanmarie Diggs <joanied src gnome org>]

commit 241678f01d32f278b810b75c13c4e18b41159b27
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri Oct 2 10:58:44 2015 -0500

    Add NotShowIn=GNOME; to the desktop file
    
    In other desktops this might be considered an application, but in GNOME,
    applications must have windows and must not affect any other
    application. In GNOME, Orca is core functionality of the OS, not an app.
    Activate it using System Settings or Alt+Super+S.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735761

 orca.desktop.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/orca.desktop.in b/orca.desktop.in
index c7fa534..29d2acb 100644
--- a/orca.desktop.in
+++ b/orca.desktop.in
@@ -13,4 +13,4 @@ Categories=GTK;GNOME;Utility;Accessibility;
 X-GNOME-Bugzilla-Bugzilla=GNOME
 X-GNOME-Bugzilla-Product=orca
 X-GNOME-Bugzilla-Component=general
-
+NotShowIn=GNOME;